I dyno'd 320rwhp with stock everything but the exhaust, y-pipe, BC264 cams, and porting/polishing the head. This was at 12psi, high 10.x- low 11.x AFR's. On a stock head, 12psi, I figure you'd make 290-300whp. Between the intercooler and increased pressure, I figure you'd be in the 320whp range...